Health woes pile up in the US

点击量： 时间：2019-03-02 10:20:00

BAD news piled up for the US this week. Not only could the number of obese American have been underestimated by as much as 50 per cent over the last 15 years, but Americans are not as healthy as their British counterparts. Majid Ezzati and his colleagues at the Harvard School of Public Health found that men and women unintentionally give false information during nationwide health surveys. Women often underestimate their weight, while men overestimate height, both of which mess up the body-mass-index calculations used to work out whether someone is overweight. Ezzati estimates that during 2002, for example,